My softmodded wii doesnt correctly load after moving to another tv

I just softmodded my wii yesterday. it was 4.3 (it says 4.1 now), using letterbomb. i used neo gamma successfully to load some games on my room tv. but then when i moved it to the living room tv, no games would load right. they would show the wii remote screen in black and white, and then video would be lost. so i moved it back to my other tv. it works fine. let me be clear, I CHANGED NOTHING ELSE BUT THE TV. please halp :/